ML20138E687

Forwards Safety Evaluation Accepting Util Re TS Change for Emergency Bus Undervoltage Protection Sys at Plant

ML20138E687
Person / Time
Site:	Saint Lucie
Issue date:	04/27/1995
From:	Berlinger C NRC (Affiliation Not Assigned)
To:	Matthews D Office of Nuclear Reactor Regulation
Shared Package
ML20136C539	List: IR 05000335/1994009 IR 05000335/1996002 L-96-227, Forwards LER 96-S01 Re Tampering W/Key Switches on Hot Shutdown Control Panels ML20136D672 ML20136D791 ML20136D807 ML20136D826 ML20136E425 ML20136E584 ML20136E630 ML20136E877 ML20136F036 ML20136F141 ML20136F193 ML20136F245 ML20136F260 ML20136F319 ML20136F524 ML20136F542 ML20136F548 ML20136F555 ML20136F561 ML20136F567 ML20136F575 ML20136F583 ML20136F590 ML20136F595 ML20136F604 ML20136F608 ML20136F623 ML20136F647 ML20136G031 ML20136G074 ML20136G089 ML20136G115 ML20136G254 ML20136G294 ML20137D404 ML20137D421 ML20137D436 ML20137D457 ML20137D508 ML20137D737 ML20137D744 ML20137D777 ML20137D818 ML20137D837 ML20138D105 ML20138D113 ML20138D124 ... further results
References
FOIA-96-485 TAC-M91696, NUDOCS 9505020461
Download: ML20138E687 (1)

Text

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' MEMORANDUM T0: David Mattheus, Project Director

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Projec. Jirectorate II-l April 27,1995 Division of Reactor Projects I/II i

Office of Nuclear Reactor Regulation FROM:

Carl H. Berlinger, Chief Electrical Engineering Branch Division of Engineering Office of Nuclear Reactor Regulation

SUBJECT:

ST. LUCIE, UNIT 2 - SAFETY EVALUATION OF TECHNICAL SPECIFICATION CHANGE FOR EMERGENCY BUS UNDERVOLTAGE RELAYS (TAC NO. M91696)

Plant Name:

St. Lucie, Unit 2 Utility:

Florida Power & Light Company Docket No.:

50-389

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Licensing Status:

OR

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Resp. Directorate:

PDII-l Project Manager:

J. Norris Review Branch:

EELB/DE Review Status:

Complete In its letter of February 27, 1995, Florida Power & Light (licensee) proposes that the technical specification (TS) for the emergency bus undervoltage protection system at St. Lucie Unit 2 be revised. The proposed TS amendment pertains to the loss of voltage (LOV) and degraded grid voltage (DGV) sections of the undervoltage protection system, which are shown under Item 6, " Loss of Power," in Tables 3.3-3 and 3.3-4, under " Engineered Safety Features Actuation System Instrumentation." The licensee proposes to change (1) the total number of channels, required number of channels to trip, and the required actions for the LOV relays to accommodate an improved coincident trip logic and relay replacement in Table 3.3-3 and (2) the format used to state the time delay for the DGV relays in Table 3.3-4.

The Electrical Engineering Branch has reviewed the proposed TS amendment request and its supporting documents.

It recommends that the proposed change for St. Lucie Unit 2, as discussed in the attached safety evaluation (Attachment 1), be approved. This completes the staff's effort on TAC No.

M91696. The SALP input is provided as Attachment 2.

Docket No.: 50-389 Attachments: As stated IOIO2.Ojg/ p>

CONTACT:

P. Kang, EELB/DE 415-2779 DISTRIBUTION w/ attachments BSheron, NRR Glainas, NRR SVarga, NRR JNorris, NRR RBorchardt, NRR (SALP only)

JNorris/Secy, NRR (via EMail)

Central Files EELB R/F lIl St. Lucie S/F i

Document Name: G:\\ SHARED \\STLDGVTS.SE

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T2 receive a copy of this doctanent, indicate in the box C= Copy w/o attachn(=rftf with attachment / enclosure N s No copy 0FFICE EELB:DE:NRR t.

SC/EELB:DE:NRR I

C/EELB:D(:Nh b NAME PJKang:nkw N/

PGill k

CHBerlinger

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DATE 04/m/95 04/2% /95 04/N95 OFFICIAL RECORD COPY gg